wrist pain/popping

When I do any type of bicep curl with dumb bells using weights typically past 40lbs. on my left arm (right being the dominate) I get a weird feeling like there's a popping in my wrist, or rather about 2 inches up from my wrist when I lower it to where my arm is almost straight. I went to have it looked at for a massage and physio but nothing helped, and they aren't sure what is it. It does seem to get a bit numb at times too at certain arm exercises. Altho hard to say.
I do a lot of typing and not sure if it has anything to do with Carpal Tunnel which I don't think I have right now cause I get no pain, but the popping in my wrist just kind of freaks me out a bit and makes it uncomfortable. Doesnt' happen when I use lighter weights.
Any idea on what this is or how to fix it? It's kinda like a popping you'd get when you're doing dumb bell side lateral raises I'm guessing. Which I don't really get unless I really stretch my arm out with a heavy weight.

thanks for the tip but it's actually worse when I do standing hammer curls and less popping when I do a standing alternating curl. I don't bend my wrists then.
When I'm doing chinups or anything with a straight bar using both hands it doesn't pop then. It's as tho the flexors are rubbing? I suppose my only solution is to just use lighter weights with a higher rep and hopefully my flexors will become stronger that will allow me to gradually use heavier weights.
Kinda like when you're doing a side lateral raise and your shoulders can kinda pop. I know mine do, but this is in my wrist.

When I do any type of bicep curl with dumb bells using weights typically past 40lbs. on my left arm (right being the dominate) I get a weird feeling like there's a popping in my wrist, or rather about 2 inches up from my wrist when I lower it to where my arm is almost straight. I went to have it looked at for a massage and physio but nothing helped, and they aren't sure what is it. It does seem to get a bit numb at times too at certain arm exercises. Altho hard to say.
I do a lot of typing and not sure if it has anything to do with Carpal Tunnel which I don't think I have right now cause I get no pain, but the popping in my wrist just kind of freaks me out a bit and makes it uncomfortable. Doesnt' happen when I use lighter weights.
Any idea on what this is or how to fix it? It's kinda like a popping you'd get when you're doing dumb bell side lateral raises I'm guessing. Which I don't really get unless I really stretch my arm out with a heavy weight.

I get this too. It sounds like nerve entrapment as that is what it is for me.

Try doing therapeutic exercises for your wrist with very low weights. All national team gymnasts do these types of exercises with their workouts and manage to keep their wrists under control.
Wrist pains/tendonitis are probably the most common thing in that sport and using those exercises have helped countless athletes.